What is CVE-2026-86751?

CVE-2026-86751 is a high-severity vulnerability in Grokability Snipe-It, classified under External Control of File Name or Path. CVSS score: 8.5/10. Published 2026-09-09.

How severe is CVE-2026-86751?

High severity. CVSS v3 base score is 8.5 out of 10.

Vulnerability in Grokability Snipe-It

CVE-2026-86751

Snipe-IT before 8.7.0 fails to properly sanitize markdown image syntax in note fields, allowing authenticated users to read arbitrary server files and issue server-side HTTP requests. Attackers can submit markdown image syntax in checkout acceptance notes that survive HTML escaping, are expanded by CommonMark parser, and resolved by laravel-mail-auto-embed via file_get_contents or curl, exfiltrating sensitive files like .env containing APP_KEY.

CVSS v3 metric

CVSS v3 base score 8.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N.

Affected products

Grokability Snipe-it

Weakness classification (CWE)

CWE-73 — External Control of File Name or Path

References

disclosure@vulncheck.com (vendor-advisory)
disclosure@vulncheck.com (third-party-advisory)

Frequently asked questions

What is CVE-2026-86751?: CVE-2026-86751 is a high-severity vulnerability in Grokability Snipe-It, classified under External Control of File Name or Path. CVSS score: 8.5/10. Published 2026-09-09.
How severe is CVE-2026-86751?: High severity. CVSS v3 base score is 8.5 out of 10.